In a potential “breakthrough,” investigators have ID’d a suspect in the Boston bombings from surveillance video, CNN is reporting. The focus in the probe “has switched from identification to apprehension.”

Here’s what you should know.

1. Sources tell CNN’s John King that analysis of surveillance video shows “clear facial ID of a suspect.”

2. A package this suspect is carrying matches the description of how investigators believe the bomb was transported. He’s seen carrying a black duffel bag at the second bombing scene, on Boylston Street at the Forum Restaurant. The video shows the suspect dropping the package and leaving the scene. Footage comes from the Lord and Taylor store’s camera.